Elastic wheel.



No', 897,881.l

PATENTED SEPT. 8, 1908. A. DAUVEEGNE. ELASTIG WHEEL.

v -APPLIUATION FILED NOV. 29,1907.

u/l'bzesses:

CIT

N f Annan @ativan Lyon, in the French VRepublic, have invent-iy edcertain nenT and useful improvements in Elastic lWheels, ci" which thefollowing is a specification.

This invention relates to elastic Wheels and consists oi novelconstruction et indeu pendent diametric spokes, surrounding a sleeveadapted. to move relatively to the telly into any position. in the planeot rotation, said telly being connected to the axle in such a manner tomove same or be moved thereby mechanically.

An embodiment ot the invention is shown in the annexed drawing asapplied to vehicle Wheels in which the elasticity is obtained by springswhich react on the spokes.

Figure 1 is a vertical sectional elevation on the line 1-1 ot' Fig. 2,and Fig. 2 is a vertical section on the line 2 2 ot' Fig. 1.

A sleeve A, loosely mounted on the aide B in the event of same being`driven by means of a chain and pinions C, or driven by the axle directwhen the latter acts as driving member carries rigidly flied theretoradial bars D, which slide in recesses D1 formed in the walls ofextensions il, ,lll of the diametric spokes. The latter are formedperpendicularly to said ,recesses as tubes il, which are caused tosuccessively engage spring pressed tubes G during the ruiming oi' thewheel. The said tubes G arranged at distances apart corresponding to thespoke tubes F, transmit the load on the hub or axle to a series ofconical helical springs ll the preferred section of which in practice isrectangular. Said springs are inclosed in the conical outer ends oftubes l, which rigidly connect the central drum or hub J to the telly K.The aforesaid sleeve A carries at each end, a plate L adapted to followall the positions of the hub in the plane ol rotation of the Wheel., butguided laterally by bearing against a ring M integral wth the centraldrum-J. -A cover N is provided to protect the interior from dust.

Only one ot' the plates -L is rovidedivith a flexible connection ofsuitab e material at the frame side ot' the Wheel to permit uni versalmovement oi the sleeve Without affecting the tightness necessary 'forlubrication. The spokes are separated trom the tubes for the purpose ofsecuring indcpcnd' ent movement and to prevent the greater pressure otone spring overcoming the lesser 'he tters Patent.

nppiicationiezi November 2E?, 194.17. Serial No. 0%33?.

E, 0F LYN, FRANCE.

.rate-ated sept. e, isos.

pressure lof a spring diametrically opppsite thereto. F rom the aboveconstruction it results, that each shock to which the tellyl issubjected either due to the road or by di'tlerent conditions of ruiming,is transmitted to thesleeve A by means ot the spokes, after having beenabsorbed to a very large extent by the springs reactingon the ends ofthe spokes. In order to produce this result, each spoke must be capableof independent movement without being in any Way counter-- acted. by themovements of any or all of the remaining spokes. Thus, assuming adiametrical spoke to bein a position parallel to the road lt will beseen that owing to the central enlargement E the guidance of'wliich isperpendicular to the axis of the spoke, the ring J is permitted to movein any direction in the plane otrotation of the wheel even with aninclined displacement, and this movenient will in no case becounteracted by the horizontal spoke, which at this moment becomesindependent.

Since the Wheel consists et an assemblage of rigid mechanical parts, notransverse deiicction can take place, andthe hub is guided over a largediameter by the plates L in rigid connection with the sleeve, andbearing Yon the rings M.

Vtvhat l claim as my invention and desire to secure by Letters Patent otthe United States is 1. nn elastic Wheel comprising in combination arigid telly, a hub independent thereoli, and capable ot movementrelatively thereto in the plane ol rotation, a series of dia metricspokes having central portions in sliding engagement with said hub,cushioning means interposed between the enter ends of each spoke and theinner surface oi' the lclly, a central drum and rigid connectionsbetween the latter and the telly substantially as described.

2. An elastic Wheel comprising a rigid telly, a hub independent thereof,and capable of movement relatively thereto in the plane ot rotation ofthe Wheel, a series oi radial vbars rigidly mounted on said hub, aseries ot diametric spokes having enlarged central portions, providedwith apertures adapted to have sliding engagement with said bars, aspring interposed between thc outer ends of each spoke yand the innersurface oi the "telly, a central drum and rigid connections inclosingportions of the spokes, between said drum and the telly substantially asdescribed.

3. Anelastio Wheel comprising a rigid felly, l idly connecting said drumto the felly and in- L" aff; hub independent;thereoiggL- and capable ofl closing #movement relatively theretojinthe lane of 1 springs-aforesaid, and plates secured to the rotation of the Wheel, aseries'ofra al bars l fell and adapted to be guided by .said cen- .5rigidly mountedon said hub, aseries of di'atra 'drum substantiall asdescribed. metric tubular spokes having enlarged latr In Witness whereoflyhaye signed this speci tened entrall-portns prlzided with vapercationin the presence of'two'witnesses.' tures aa te tov ave s ing engavement4 l. T, y with said ars,l a series ofhelical s rilgs'in- 'ANDREDAUVERGNE' 10 te sed between the outer ends oft espokes :1.11 the` innersurface of the felly, a central.

drum, a. series oradially disposed tubes rig- Witnesses: v

JEAN GERMAIN, GrnLLAUME PIOCHE.

the outer ends of the spokes and the

